• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SUMMARY The invention relates to a locking device (3) for reducing the free belt hose, preferably intended for use in vehicle buses or the like. comprising two (11) such as in trucks, outer rollers (9, 10) and a center roller around which the bolt (2) runs. (9, 10) The invention is achieved in that the outer rollers are arranged to be adjustable in relation to each other in order to adapt the sliding of the bolt (2) in relation to the weight of a bolted person. (Figure 5)
    公开号:SE1350495A1
    申请号:SE1350495
    申请日:2013-04-22
    公开日:2014-10-23
    发明作者:Johan Knälmann；Dan Loftén；Kenneth Söder
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    KROCK PRODUCTION REDUCTION DEVICETECHNICAL FIELDThe present invention relates generally to the safety belt for vehicles and in particular devices to the safety belt which reduce the extent or magnitude of the movement of the bolted person forward, forward, in the event of an accident. The inventionOr specially intended for use in commercial and / or heavy vehicles such as, for example, lorries, buses, etc., where the function of the loading or sparring device according to the invention is primarily intended to reduce / reduce the free belt length, ie the length of belt between two attachment points. DOrigenomThe tightening of the safety belt which can only occur in a shorter part of the bolt is also reduced. The size of the projection is reduced in the event of an accident. The invention also relates to a vehicle in which a device according to the invention is used.
    BACKGROUND OF THE ARTFor all modern cars and heavy vehicles, it is in mangaThere are legal requirements that the seat belts are fitted as personal protection and that they are used by drivers and passengers. Atan accident, e.g. in the event of a collision, Or the intention that the safety belt shall prevent the user from being thrown forward orout of the vehicle with the risk of answering damages as a result. To protect as effectively as possible, the bolt should be secureframe to reduce the projection that always occurs at the sudden stop that occurs in the event of an accident. The bolt ismade of a strong weave but as an arida allows a certain elongation at the forces which arise in the event of an accident and a certain forward throw throws above the bolt or optimally struts around the userbefore the accident. The longer the free belt length Or the greater the total strain length arises at the time of the accident,and the stiffer or longer the projection becomes for the user. The user risks hitting interior details in the vehicle. In other words, the free belt hose can play a decisive role in the extent of the personal injuries in the accident.5 In many vehicles and applications Is the free belt hose significant and not least in heavier commercial vehicles, depending on the construction of the seats, the location of the attachment points and the tightening of the bolt. The degree of packing of the bolt roller also affects the size of the projection, by the boltIn the event of an accident, something is pulled out, the bolt is packed harder around the shaft per se, which rotates the ball roll before it is stopped completely. The entire bolt hose can thus be said to be active in the event of an accident and the stretching of the bolt throughout its active length leads to the projection being undesirably largeWhich significantly increases the risk of serious injury to the driver and / or passengers when thrown at the vehicle's steering wheel, windscreen or other fixed interior fittings.
    There are various ways to counteract this problem. OneThe usual way is to have a so-called bolt tensioner installed, which tightens the belt by means of a special mechanism as soon as a rapid or two-way braking is detected, for example by a sensor on an electronic scale. This Or a relatively comprehensive system which thus also becomes expensive and25 complicated to install. These systems can be optional. Despite such a system, which actively stretches the bolt in the event of a collision, the spirit of the entire remaining active belt hose from the bolt roll to the normal attachment points will be subjected to stretching.
    It is also desirable that the device and its mounting can be designed and placed / mounted in an aesthetically pleasing manner. For example. viii if possible yarn hide the rollers and attachment points of the balt as far as possible.
    A fundamental wish is that the construction should facilitate assembly, be aesthetically pleasing and take suchsmall place as possible. Other wish lists are that a slip5 shall be permitted by the bolt between the rollers when a certain load drop has been reached to reduce the risk of personal injury. It is therefore unfortunate that the braking force or the force reduction in the construction can be adapted to the weight of the balled person.10 Different solutions to the said problems are already known.
    For example, patent publication DE2401703 discloses a bolt construction with a stop device placed near the bolt roller and its attachment to the body. The stop device consists of three15 rollers around which the belt runs on its way from the belt roller via a deflector and further over the vehicle seat and its passengers. In the event of a strong jerk in the bolt, the center roller slides, against the action of a spring, towards the other two rollers and lasers sharply and dumb the bolt through the friction that arises.20 between the bolt and the rollers. The construction does not allow the belt to slide at all and the device does not allow the stop function to be adapted to the weight of the passenger. In addition, the free belt hose is insignificantly affected by this construction, so that the elongation of the bolt becomes significant at a25 accidents.
    In the patent publication FR22268 various stopping devices are shown in a bolt construction. In a variant, two rollers are used, one of which slides in a spar in relation to the other30 the roller, counteracting a spring. The second roller is designed with an uneven surface, with transverse "aces and valleys". A belt runs around both rollers and when an accident occurs, the first roller slides in towards the second roller and the laser bolt crosses.
    In different variants of the construction, three rollers are used, of whichthe center roller is guided by a pendulum structure with a mass thattransferred in the event of an accident. Different solutions to this5 is shown but common to them Or that the bolt is read sharply in the event of a collision. The constructions do not allow force limitation, sliding or adjustment / adaptation to the weight of the balled person.Thus, state-of-the-art technology does not show any solution which reduces or limits the free belt hose and which at the same time allows an adjustable force limitation in a simple, space-saving and cost-effective way.There is therefore a need for a new and improved construction which allows a simple reduction of the free belt hose and which allows an adjustable force limitation which can for instance be adapted to the weight of the bolted person in a simple and cost-effective manner. Assembly should be simple20 and take as little space as possible and have a design so that it can be easily mounted in tight spaces and in an aesthetically pleasing way.
    SUMMARY OF THE INVENTIONAn object of the invention is to solve the above-mentioned problemsand to show a welding or sparring device at the safety belt which makes it possible to reduce the free belt hose30 in order to minimize the driver's and / or passenger's advance in the event of an accident.
    The invention also has for its object to allow a force limitation and that the bolt should be able to slide somewhat through the locking device when a certain predetermined load drop occurs.
    A further object of the invention is that the force limitation must be adjustable and, for example, be adaptable to the weight of the driver / passenger.
    A further object of the invention is that the construction should be simple and functional.
    A further object of the invention is that the construction 10 should be relatively small and space-saving and thus easy to mount in tight spaces.
    A further object of the invention is that the construction should contain few parts and be cost-effective to manufacture.
    A further object of the invention is that the welding function in the ordinary bolt roller should be able to be eliminated.A further object of the invention is that the construction must be so stable that it can handle all load cases that may occur in the event of an accident.
    A further object of the invention is that its assembly can take place in an aesthetically pleasing manner.
    These and further objects and advantages are achieved according to the invention with a bolt construction which has the features which appear from the cantilevered part of claim 1.
    The invention thus generally relates to the safety belt for vehicles and in particular devices to the safety belt which reduce the extent or size of the movement of the bolted person forward, the so-called projection, in the event of an accident.35 bud. The invention is particularly intended to reduce / decrease itfree belt length, ie the length bolted between two fasteningpoints to reduce the tightening of the safety belt which can then only occur in a shorter part of the bolt.5 In the event of an accident, the free bolt hose plays a decisive role in the outcome of the accident. When the entire bolt length is effective, the projection becomes unreasonably long and there is an obvious risk of serious injuries when the bolted person hits solid objects in the vehicle's interior, such as10 vehicle steering wheel.
    The invention mainly consists of three rollers where, for example, two outer rollers are displaceable in grooves in relation to each other. Also the middle roll, the lasing roll, Or15 displaceable but in a direction substantially transverse to the outer rollers. The middle roller is suitably spring-loaded, whereby the spring force strives to hollow back the roller from engaging, or against, the other two. The two outer rollers can be shifted / adjusted in relation toUsing a preferred mechanical adjustment mechanism. The purpose of this is to increase or decrease the friction between the three rollers and the bolt under load as in the event of an accident. The bolt runs between the three rollers and in the event of an accident, the middle roller is pulled, counteracted by a springForce, against abutment against the outer rollers so that a strong friction arises between the bolt and the middle and the outer rollers whereby the bolt is read with immediate effect. As a result, not the entire length of the bolt is subjected to stretching, but only the part of the bolt that is away from the welding cone.The structure and its front lower attachment point.
    The construction according to the invention eliminates the disadvantages of prior art and a more spirit-friendly, functional, and easily mounted bolt construction is obtained.
    Further features and advantages of the invention will become apparentthe following, more detailed description of the invention and of the accompanying drawings and other claims.
    BRIEF DRAWING LISTThe invention is described in more detail below in some preferred embodiments, with reference to the accompanying drawing figures.
    Figure 1 shows a vehicle seat straight from the front with a belt mounted and the locking device according to the invention placed near, or in place of, a recliner of the bolt in order to achieve a reduction of the free belt hose.
    Figure 2 shows the same vehicle seat as in figure 1, but from the side whereby the welding device for reducing the belt hose is shown schematically.
    Figure 3 shows in more detail and from the side the welding device according to the invention schematically in a first layer where the bolt Or is mounted but not locked by the device for reducing the bolt hose.
    Figure 4 shows the same view as figure 3 but with the bolt in onesparred lage sasom at load after an accident.
    Figure shows more closely an oblique side view of the rollers in the invention, showing an adjusting device with whichThe rollers can be adjusted in relation to each other to vary the force reduction in the system.
    Figure 6 shows how the outer rollers can be placed at different levels in relation to each other so that an adapted force reduction can be obtained.
    Figure 7 shows the principle of the three rollers and how the opposing force can theoretically be calculated.
    DESCRIPTION OF PREFERRED EMBODIMENTSThe invention therefore relates to the safety belt for vehicles and in particular devices at such safety belts which reduce the projection in the event of an accident. The invention Or in particular10 is intended to reduce and reduce the free bolt length between two attachment points in order to reduce the strain in the safety belt that arises in the event of a strong jerk, such as in the event of an accident.
    Figure I shows a vehicle seat 1 straight in front with a belt 2 mounted and the us- or sparring device 3 according to the invention placed at the top, on or at the back of the seat 4 of a tank bolted by a tank-bolted person, in order to achieve a reduction of the free belt length 2F, i.e. the lOngd bOlte20 which may be subjected to strain in the event of an accident. The locking device 3 for reducing the free belt hose Or in the figure is mounted in the place where a re-anchor of the bolt 2 could obviously be placed. The part 2 is otherwise mounted in the figure in the usual way, ie from its fixed frontLower attachment point 5 at the left side of the chair 1 extends the belt 2 over the seat 6 and therewith over a tank belted person to the detachable bolt fastening 7 at the second right side of the chair 1 and further up to the locking device 3 according to the invention and then further down behind the chairBackrest 4 to a bolt roller 8 of the kand type (see fig. 2) which in turn Or fOstad in the vehicle floor, body or the like.
    Figure 2 shows the same vehicle seat 1 as in figure 1 but from the side where the rollers 9,10,11 in the welding device 3 appearSchematically. The body 2 runs between / around two adjustable outer rollers 9,10 and a middle spring-loaded loading roller, respectively.11.
    Figure 3 shows in more detail and from the side the inventive lice device 3 schematically in a first phase, in a first oust lig, where the bolt 2 is placed / mounted over a tank-bolted person but not yet slotted / sparred in the lice device.The rollers 9-11 are stored and displaceable by means of grooves 12a-c arranged, for example, in a surrounding housing / housing 13. The outer rollers 9,10, shown in the figure as the upper and lower roller, can be displaced in vertical direction by means of a mechanical adjusting device 14 (see Fig. 5) while the middle oneThe rolling roller 11 can be displaced in the horizontal direction, in the figure. The central roller 11 and its shaft 15 strive to be displaced to the left in the figure with the aid of one or more tension springs 16, thereby tensioning the bolt 2 which runs around the central roller 11.
    In the event of an accident, the acceleration arises or slows down in the bolt 2 and forces arise due to the geometry and inertia of the rollers 9-11. These forces press the middle loading roller 11 into engagement with the two outer onesThe rollers 9,10, i.e. in the direction of the right in the figure, the bolt 2 being welded between the rollers 9-11 due to the friction which arises between the rollers 9-11 and the bolt 2.
    Figure 4 shows the same view as figure 3 but with the bolt 2 in a stripOr sparred layer as it may appear after an accident in which the bolt 2 has been jerked with the consequence that the middle roller 11 has been displaced against the action of the spring 16 and wedged between the two outer rollers 9,10.
    Figure shows a narrower, oblique bottom view and in more detail, an oblique side view of the three rollers 9-11 in the us- or sparring device 3 according to the invention, showing how an adjusting mechanism 14 is placed at the outer spirits of the outer rollers 9,10 and with which the outer the rollers 9,10 and their axlesCan be displaced in relation to each other to vary and adapt the desired force reduction in the construction. The rollers 9,10 are set in with the aid of, for example, a steering wheel 17 mechanically coupled to a gear wheel 18 which simultaneously pivots two10rods 19a, b provided with teeth. The racks 19a, b stand in one spirit in communication with their respective rollers 9,10, via their shafts, and when the knob 17 is rotated, the two rollers 9,10 are displaced from each other or towards each other.
    This allows the rollers 9,10 to be adjusted to a position corresponding to the force component you wish to adjust against. The middle roller 11 in the construction strives to be pulled out, towards the left in the figure, with the aid of one or more tension springs 1610 are preferably placed on both sides of the spirits of the middle roller 11, and suitably actuate the central axis of the central roller 11, thereby tensioning the belt 2 running between the rollers.The upper and lower outer roller 9,10 can thus be adjusted in the vertical direction with the aid of the mechanical adjusting device and preferably fixed in the desired position. Through the adjustment, the function of the welding or sparring device can be adapted to e.g. the weight of the bald person said that a certain slippageIs reached by the bolt between the rollers when a certain load drop or spruce value has been reached. The sliding aims to reduce the risk of personal injury if the force in the bolt exceeds a predetermined and adjusted spruce value. The welding or sparing device functions clamed in practice as a force-reducing25 rare.
    Figure 6 shows how the outer rollers 9,10 can be placed at different levels in relation to each other and in relation to a tank centerline 20. In this way a loading load F2 can30 adapted. The angle [3, can preferably always be larger than oc. In this way, the force reduction can be adjusted to a desired optimal value. The force in the welding can also be changed by adjusting the friction between the middle roller 11 and the outer rollers 9,10. Rollers 9-11 can be made of differentMaterials such as steel, nylon, plastic, rubber, etc. and the surface of the rollers 911 can be given different degrees of surface roughness so that the desired friction can be achieved against the bolt 2.11Figure 7 shows the principle of the three rollers 9-11 in the load layerand how the restraining force in the bolt 2 can theoreticallyberaknas. The anti-slip force is given by the formulap x N, ie am a is reduced so akar p x N. The normal force F1 of others 5 with a different angle a, ie F1 = N x sin a.
    The above description is primarily intended to facilitate the understanding of the invention. Of course, the invention is not limited to the above embodiments butOther variants of the invention are also possible and conceivable within the scope of the inventive concept and the scope of protection of the appended claims.
    The invention can of course also be used for other types of vehicles or in other applications where the safety belt is used as personal protection for passengers or passengers in the event of an accident.12
    权利要求:
    Claims (1)
    [1]
    PATENT REQUIREMENTS
    Welding device (3) for reducing the free belt length, preferably intended for use in vehicles such as, for example, trucks, buses and the like. comprising two outer rollers (9,10) and a central roller (11) around which the bolt (2) runs, characterized in that the outer rollers (9,10) are arranged to be adjustable in relation to each other in order to adapt the bolt (2) 2) slippage in relation to a bald person's weight.
    Welding device (3) according to claim 1, characterized in that the outer rollers (9, 10), or their axes, are displaceable in grooves (12a, b).
    Welding device (3) according to claim 1 or 2, characterized in that the outer rollers (9, 10) are displaceable by means of a mechanical adjusting device (14).
    Loading device (3) according to one or more of the preceding claims, characterized in that the mechanical adjusting device (14) comprises geared elements (19a, b) which can be displaced longitudinally by means of a rotatable geared wheel (18).
    Vehicle comprising a welding device (3) according to any one of claims 1-4. Z * 2! AT '2! A cY) 2/4 cr
    1. 1- ro JZ
    91.
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    同族专利:
    公开号 | 公开日
    DE102014005565A1|2014-10-23|
    SE537731C2|2015-10-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2226840A6|1973-04-20|1974-11-15|Noir Rene|Device for locking vehicle safety belt strap - has three parallel rollers, the centre sliding, the others fixed|
    DE2401703B1|1974-01-15|1974-09-12|Carl Stahl, Gurt- Und Bandweberei, 7922 Herbrechtingen|DE102016123307A1|2016-12-02|2018-06-07|Trw Automotive Gmbh|Force limiting device and safety belt system|
    DE102017105386B4|2017-03-14|2021-03-04|Autoliv Development Ab|Belt retractor with belt retractor and force limiter|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1350495A|SE537731C2|2013-04-22|2013-04-22|Device for draft reduction in the event of a crash|SE1350495A| SE537731C2|2013-04-22|2013-04-22|Device for draft reduction in the event of a crash|
    DE201410005565| DE102014005565A1|2013-04-22|2014-04-16|Device for reducing the Nachnspun in collisions|
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